Georgia’s scores in six subjects are 89, 75, 92, 68, 78, 75, and 80. If she finds a single value that summarizes all the values in the data set, which measure could she be finding?

chose more than one

range mean
range
interquartile range
median
mean absolute deviation
mode

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

What is the value of x when x + 7 = 21?